Vehicle jack



Aug. 21, 1945. w, ANE 2 ,383,275

VEHICLE JACK Filed Jan. 25, 1945 s Sheets-Sheet -1 inventor J4MS H. SCAA/E J. w. SCANE VEHICLE JACK Aug. 21, 1945.

Filed Jan. 25, 1945 I5 Sheets-Sheet 2 Inventor MAJ/5 W SC/I NE J. W. SCANE VEHICLE JACK Aug. 21, 1945.

Filed Jan. 25, 1945 3 Sheets-Sheet 3 111 ventor J4 Alf 5' m SC/l NE Q4. and

Patented Aug. 21, 1945 UNITED STATES PATENT -OQFFICE p a 2,383,275 I Y I i a VEHICLE ACK I James Scane,Windsor,"Ontario Canada ,Application januaryjzi 19 45,seiaiivq. 574,4s5 j i 5 Claims. (cram-1w] This invention relates to improvements vee hicle jacks of the type shown in my U. S. Letters Patent 2,360,624, dated October 17, 1944. I

The primary objecttof-the present invention is n to generally simplify and improve the construetion oi -the vehicle jack disclosed in my abovementioned patent.

More specifically, the present invention aims to provide a jack of the above kind which em-w bodies .a minimum number of .parts arranged to provide for convenient and efllcient operation, and which includes a base which, is of durable form although constructed of sheet metal to avoid excessive ,weight. a

Another object of the invention is to provide, in a, jack of the above kind improved meansto facilitate location of the jack with respect to the part of the vehicle to beengaged by the lifting lever. l v 1 More specific objects and features of the invention will .become apparent fromthe following description, when considered in connection,

with :the accompanying drawings, and the invention consists in the novel formpcombination Figure 2 is :an end elevational view thereof lookingrtoward the left of Figure 1, together with alratchet wrench engaged withthe thrustsleeve 1 forming part of the screw means for actuating the lifting lever.

view of a vehicle jack flanges are {secured together in contiguous relation by welding orthe like,;while said flanges are offset laterally, as at 9, was to be in spaced parallel-relation at the ,other end of the housbetweenwt-hefianges 1 at theadjac'ent end of the base and secured in place by welding or th like tol-reinforce-the construction. v

'Pivotedatthe juncturezofp its arms between the spaced portions of the flanges 8; as at H, is a liftingglever :lz of bell crank form including a longer arm -l3 projecting beyond one end of the housing 16 above theflanges l, and ashorterarm,

l4- depending into the housing fi. A lift member I5 is carried by the freejend of arm 13 for en- 1' projects l-beyondthe end of housing 6 and termi nates in a polygonal endportion 18 for engagement in the socket "I 90f aratchet :wrenchin'cluding :an operatinglever20. At its other or inner end, the thrust sleeve I?! is provided with a nut 2lwth'at maybe welded to or formed integral with saidth-rust sleeve. An operating screw'22 hasan end portion freely rotatable in the bore of sleeve III and is :provided at its inner end witha longitudinally slotted head 23 which straddles the lower end of -the1ever arm l4 andris loosely |pivotedwto-the latter, as at :24. Screw 22 hasthreaded engagementin the nut 2| so that, upon rotation of sleeve I l, and nut 2|,screw 22 is adjusted ,longitudinallyso as torock th'eplifting lever I2 and thereby raiseor lower the vehicle part beneath which-the lift member 15 islengagedde- Figure 3 isya view of the jack shown in Figure 1,

' partly broken away, partlyin side elevation, and partly in longitudinal section, the plane offsection being substantially on the line 3-3 of Figure 1.

, Figure 4 is a fragmentary top plan view illustr'ating a modification of the jackshown' in Figures l to-3, inclusive, and h i t Figure 5 is aside elevation of the construction shown in Figure 4;

Referring in detail to the drawings, the present jack includesan elongated base 5 comprising a strip of metal having side portions bent up wardly and shaped to provide a hollow housing 6 and spaced vertical flanges l at one end of said pending upon the direction 30f rotation of said sleevetl 'l andnut 2|. It will be seen that the sleeve I1 and screw 22 are disposed axially of the housing :6 parallel with the bottom of the base 5. Sleeve-1H ,has an external annular thrust flange 25,:and a thrust bearingHZB is interposed between this flange and the block l6 to insure oscillation lof the lever 20 of the ratchet ;wrench willtefl'fect rotation of sleeve I-I'and nut z'l in the desired direction. Rotation of sleeve I] in one direction will cause screw 22 to move outwardly j of sleeve I'lso as to rock lever I2 for raising the vehicle part. On the other hand, reverse rotation of sleeve 11 will effect movement of A section of pipe H1 may be interposed resting upon the lift member l5.

screw 22 into sleeve ll so as to rock lever I 2 in the opposite direction and lower the vehicle part The ratchet wrench I9, 20 may be of any conventional type that is either reversibly applicable to the end 58 of sleeve IT or that embodies means for reversibly driving its socket I 9. As the specific construction of the ratchet wrench forms no part of the present invention, its'constructio-n need not be disclosed herein in detail.

In order to facilitate location of the jack with respect to the part of the vehicle to be engaged by the lift member 15, studs 21 are rigidly fixed toopposite sides of the base 5 by welding or the, like so as to project laterally from said base; A"

length of pipe or tubing 28 is provided, either end of which may be telescopically engaged over the desired one of the studs 27, and this length parts which are so arranged as to insure ready and efficient operation. The base is so formed of sheet metal as to be of light weight and capable of economical manufacture. Minor changes in details of construction illustrated and described are contemplated, such as fairly fall within the spirit and scope of the invention as claimed.

What I claim ist.

1. A vehicle jack comprising an elongatedbase adapted to lie on the groundfialong, one side of the vehicle wheel, a stationarythrustblock carried by one end of the base, a thrust sleeve journaled in said thrust block and disposed parallel with and above the bottom of the base, said thrust sleeve having a polygonal outer end to facilitate the application of a wrench thereto for of pipe or tubing 28 is ,of such length as to contact the adjacent wheel of the vehicle at its outer end when the base of the jack is properly situated to-engage the lift member IS with the part of the vehicle to be lifted. It will be apparent that the length of pipe or tubing 28 is selectively engageable with either desired stud 21 so that the jack may be effectively employed at either side of the vehicle. This arrangement takes the place of the pivoted arms 31 of my above-mentioned patent and constitutes a desirable improvement thereover.

In theembodiment of Figures 1 to 3, inclusive, the lift member [5 is in the form of a short length-of pipe disposed across and centrally welded to the free end of lever arm l3, as at 29. Due to the cylindrical form of the member IS in this embodiment, free change in angular relation between the lever arm l3 and the vehicle part engaged'by the member l5 will be had. Also, in this embodiment, the flanges 8 are preferably rigidly connected by a spacing sleeve and rivet, as at adjacent the flanges I and the top of the adjacent end of housing 6.

I In the embodiment of Figures 4 and 5, the lift member i5 is in the form of a channel plate carried by th e' upper'end of a lever 3| which is pivfoted intermediate its ends to the free end of leverarm l3; as at'32. The lever 3| depends be low the lever arm l3 and has its lower end pivoted at 33 to the forward'end of a link 34 whose rear end is pivoted to and between the flanges 8,- as at 35. Pivot 35 is located directly above the adjacent portion of housing 6 and forwardly of and below the pivot H of lever l2. Link 34 coacts "with lever 3i so asto maintain the lifting plate I5 horizontal at all times, regardless of the positionof lever arm l3. mentis preferred where the jack is to be engaged with a part of the vehicle which is rounded and would not remain upon a lift member of the form shown in Figure 1. Otherwise, the con- This arrangestruction of Figures 4 and 5 is identical with that of Figures '1 to 3, inclusive, and remaining parts of both forms that are similar are indicated by like reference numerals.

From the foregoing description, it is believed that the construction and operation, as well as the advantages of the present invention, will be readily understood and appreciated by those skilled in the art. It will be seen that thepresent jack involves a minimum number of compact turning the same, a nut rigid with the inner end of the thrust sleeve, an operating screw having threaded engagement in the nut and movable within the thrust sleeve, a thrust bearing between the thrust sleeve and the thrust block, a lifting lever of bell crank form pivoted on the base upon an axis transverse'tothe latter, said lifting-leverincluding an arm projecting toward theend of the base opposite that-at which the th'rust block is located'and a shorter arm dependingadiacent the inner end of the operating screw, and a-piw otal connection between said operating, screw and the second-named 'arm of said lifting lever.

2. The construction defined in claim 1, in combination'with-a cylindrical lift member disposed across and centrally fixed upon the free end of" the first-named arm of said lifting lever." 3. The construction defined inclaim 1, in cornbination with a lever 'pivoted intermediate its ends to 'the free end of the first-named arnrfoff said lifting lever and projecting above'and' below" the latter, a channel lift plate rigid with the up- Der end of said last-named lever, and alink dis posed beneath the first-named arm of the lifting leverand pivoted at one end to the base'afdja cent the pivot of the lifting lever and at its other end to the lower end of said second-named lever for maintaining the lift plate in a'horizont al position. I

4. The construction defined in claim' 1, Where in the base comprises an elongated'sheet of metal having side portions bent upwardly and shaped'to form a horizontal hollow housing andfianges projecting upwardly from'the housing centrally between the sides of the latterj said thrust block and screw being arranged in said housingjsaid flanges having portions secured together and other portions spacedapart,the liftingleveibe portions'of the f ing pivoted to and between the flanges which are spaced apart. 7 w I 5. The construction defined in claim 1,:in com-'- bination: with horizontal studs" rigid with and projecting'laterally from opposite sides of the base, and a tubular member adapted to be selectively telescoped over either desired one of said studs, said tubular member being of greater" length thanthe studsfand'adapte' d' to contact the inner side of theadj a-cent vehicle wheel to facilitate positioning of the jack with respectto I the part of the vehicle to be engaged bythe' lifting lever.

JAMES w; SCANE. 

